Fan-Out Under Half-Column Parent
A chain of fan-outs ending at `G`, whose box has an even width. Each ASCII arrowhead sits directly under its stem, including the left one (#1914).
fan-out-under-half-column-parent.mmd
flowchart TD
A --> B
A -->|no| C
C --> D
D --> E
D --> F
F --> G
G --> H
G --> I